Ink supply device for packaging bag printing

Abstract

The invention relates to the technical field of printing, and discloses an ink supply device for packaging bag printing, which comprises an ink supply cylinder arranged on a printing machine body, the printing machine body is provided with an ink filling groove, the bottom of the ink filling groove is provided with an inclined material guide plate, and the ink filling groove is internally provided with a material scraping plate. The bottom of the scraping plate is provided with a plurality of sets of through grooves, impellers are rotationally arranged in the multiple sets of through grooves, a first sliding rod is fixed to one side of the scraping plate, and a side plate is arranged at the top of the printing machine body. The side plate is provided with a reciprocating moving assembly used for driving the material scraping plate to move left and right along the inclined material guiding plate. According to the technical scheme, during ink supply, the scraping plate moves along the inclined guide plate, so that the scraping plate can scrape ink on the inclined guide plate, ink supply treatment is facilitated, part of the ink can be prevented from being attached to the inclined guide plate for a long time, and ink supply uniformity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of printing, in particular to an ink supply device for packaging bag printing. Background Art

[0002] Packaging bags are bags used to pack various items, making it easy to transport and store goods during production and circulation. They are widely used in daily life and industrial production. When producing packaging bags, it is necessary to print some specific patterns on the surface of the packaging bags through a printing press. When using a printing press for printing, an ink supply device is required to supply ink to the printing press.

[0003] In order to increase the uniformity of ink supply, the ink supply device of the existing printing press generally adopts the reciprocating motion of the ink supply cylinder to make the ink move left and right along the direction of the ink uniforming roller of the printing press. However, when supplying ink to the ink uniforming roller, it is necessary to first add the ink into the ink filling groove of the printing press, and then supply the ink by rotating the ink uniforming roller. However, due to the adhesion of ink, the ink will adhere to the bottom wall of the ink filling groove, making it easier for the ink on the top to be discharged, while the ink discharge speed of the bottom wall of the ink filling groove is slow or cannot be fully discharged. If the ink is supplied for a long time, the bottom wall of the ink filling groove will adhere to the ink, resulting in ink deposition at the bottom, resulting in uneven ink supply. Summary of the invention

[0004] The present invention provides an ink supply device for packaging bag printing, in which a scraper plate moves along an inclined guide plate so that the scraper plate can scrape the ink on the inclined guide plate. At the same time, a reciprocating motion component is provided so that the scraper plate can reciprocate left and right to increase the scraping effect, thereby solving the problem mentioned in the above background technology that the ink discharge speed of the bottom wall of the ink filling groove is slow or cannot be fully discharged, and the ink supply is carried out for a long time, so that the bottom wall of the ink filling groove will adhere to the ink, resulting in ink deposition at the bottom and uneven ink supply.

[0005] The present invention provides the following technical solution: an ink supply device for packaging bag printing, comprising an ink supply cylinder arranged on a printing machine body, an ink filling groove is arranged on the printing machine body, an inclined guide plate is arranged at the bottom of the ink filling groove, a scraper plate is arranged in the ink filling groove, a plurality of groups of through grooves are opened at the bottom of the scraper plate, impellers are rotatably arranged inside the plurality of through grooves, a first sliding rod is fixed to one side of the scraper plate, a side plate is arranged on the top of the printing machine body, and a reciprocating moving component for driving the scraper plate to move left and right along the inclined guide plate is arranged on the side plate.

[0006] As an optional solution of the ink supply device for packaging bag printing described in the present invention, the reciprocating moving component includes a first slide groove opened on the side plate, the end of the first slide rod is slidably set in the first slide groove, the end of the first slide rod is fixed with a first sliding protrusion, and the inner wall of the first slide groove is provided with a track groove for the first sliding protrusion to slide.

[0007] As an optional solution of the ink supply device for packaging bag printing described in the present invention, the track groove includes a first horizontal portion, a first inclined portion, a second horizontal portion and a second inclined portion which are connected in sequence, a first one-way plate is elastically connected at the connection between the first inclined portion and the second horizontal portion, and a second one-way plate is elastically provided at the connection between the second inclined portion and the first horizontal portion.

[0008] As an optional solution of the ink supply device for packaging bag printing described in the present invention, the reciprocating moving component includes a guide rail fixed on the side panel, a sliding seat is slidably arranged on the guide rail, an electric push rod is fixed on the sliding seat, and the output end of the electric push rod is fixedly connected to the end of the first sliding rod.

[0009] As an optional solution of the ink supply device for printing packaging bags described in the present invention, a first baffle and a second baffle are respectively provided at both ends of the through groove, a storage cavity for sliding the first baffle and the second baffle is provided inside the scraper plate, a second slide groove is provided on the outer surface of the side plate, a second slide rod is slidably provided in the second slide groove, a convex plate is fixed on the second slide rod, a horizontal plate is fixed on both the first baffle and the second baffle, and the other end of the horizontal plate is fixedly connected to the convex plate.

[0010] As an optional solution of the ink supply device for packaging bag printing of the present invention, a straight groove is opened inside the second slide groove, a second sliding protrusion is fixed to the end of the second slide rod, and the second sliding protrusion is slidably arranged in the straight groove.

[0011] As an optional solution of the ink supply device for printing packaging bags described in the present invention, a rotating shaft is fixed on the top of the impeller, a limiting ring is sleeved on the rotating shaft, a first guide plate is fixed inside the scraper plate, the limiting ring is slidably arranged in the first guide plate, a second guide plate is slidably arranged inside the scraper plate, and a connecting plate is fixed between the surface of the second guide plate and the surface of the convex plate.

[0012] As an optional solution of the ink supply device for packaging bag printing described in the present invention, a first guide groove for the sliding of the rotating shaft is provided on the first guide plate, a second guide groove for the sliding of the limiting ring is provided on the first guide plate, and an inclined groove for the sliding of the rotating shaft is provided on the second guide plate.

[0013] As an optional solution of the ink supply device for printing packaging bags described in the present invention, a protrusion is fixed on the surface of the fixed sleeve, a transmission rod is fixed on the lower surface of the protrusion, a limiting seat is fixed on the upper surface of the scraper plate, a limiting groove is provided on the limiting seat, and the bottom end of the transmission rod is slidably arranged in the limiting groove.

[0014] As an optional solution of the ink supply device for packaging bag printing described in the present invention, an ink distribution roller is rotatably arranged on the printing machine body, a fixed plate is fixed on the top of the printing machine body, a slide rail is fixed on the fixed plate, a movable seat is slidably arranged on the slide rail, a fixed sleeve is fixed on the movable seat, the ink supply cylinder is fixed on the fixed sleeve, and an ink outlet head is arranged at the bottom of the ink supply cylinder.

[0015] The present invention has the following beneficial effects:

[0016] 1. In the ink supply device for packaging bag printing, when supplying ink, the scraper plate moves along the inclined guide plate, so that the scraper plate scrapes the ink on the inclined guide plate to prevent the ink from adhering to the bottom wall of the inclined guide plate. At the same time, through the provided through groove, the ink can pass through the through groove when the scraper plate moves, so as to avoid excessive ink passing through the top of the scraper plate, causing the liquid level of the ink to rise higher and causing ink overflow. In addition, an impeller is provided inside the through groove, so that when the scraper plate moves, it can drive the impeller to rotate. Through the rotation of the impeller, the ink at the bottom can be stirred, which is beneficial to increase the uniformity of the ink. In addition, through the provided reciprocating moving component, the scraper plate can move left and right, so that the positions of the through groove and the scraper plate are interchanged, thereby further increasing the scraping effect on the inclined guide plate and reducing the scraping dead angle.

[0017] 2. In the ink supply device for packaging bag printing, when the scraper plate moves along the inclined guide plate, it drives the second slide bar to slide in the second slide groove, so that the second slide bar can drive the first baffle plate and the second baffle plate to move inside the storage chamber. Through the first baffle plate and the second baffle plate, the scraper plate can guide the ink to one side of the impeller regardless of whether it moves from the a side to the b side of the printing machine body or from the b side to the a side, so that the rotation of the impeller is more stable, and the stirring effect of the ink is further improved. In addition, when the impeller rotates, the rotation direction of the impeller is always toward the ink uniform roller, which is convenient for the ink to be moved to flow to the ink uniform roller, so as to facilitate the ink supply process.

[0018] 3. In the ink supply device for packaging bag printing, when the first baffle plate and the second baffle plate move, the second slide bar drives the connecting plate to move through the convex plate, and the connecting plate drives the second guide plate to move. The movement of the second guide plate causes the top of the rotating shaft to come into contact with the inclined groove, causing the top of the rotating shaft to slide along the first guide groove of the first guide plate, so that the rotating shaft drives the impeller to move horizontally in the through groove, so that when the impeller rotates, the blades of the impeller can extend to the outside of the through groove, so that the impeller can stir the ink outside the through groove, so that the ink can move more conveniently toward the direction of the ink distribution roller, further improving the ink supply effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0020] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle.

[0022] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle.

[0023] Figure 5 It is a schematic diagram of the structure of a technical solution of the reciprocating moving component in the present invention.

[0024] Figure 6 It is a top view of the structure of the second chute part in the present invention.

[0025] Figure 7 It is a schematic diagram of the internal connection structure between the first one-way plate and the side plate in the present invention.

[0026] Figure 8 It is a schematic diagram of another technical solution structure of the reciprocating moving component in the present invention.

[0027] Fig. 9 It is a schematic diagram of the internal structure of the scraper plate of the present invention.

[0028] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure at the top of the middle impeller.

[0029] Fig.11 For the present invention Fig.10 Enlarged view of center C.

[0030] Fig.12 This is a state diagram of the impeller when the scraper plate moves from side a to side b in embodiment 3 of the present invention.

[0031] Fig.13This is a state diagram of the impeller when the scraper plate moves from side b to side a in embodiment 3 of the present invention.

[0032] Fig.14 This is a state diagram of the impeller when the scraper plate moves from side a to side b in embodiment 4 of the present invention.

[0033] Fig.15 This is a state diagram of the impeller when the scraper plate moves from side b to side a in embodiment 4 of the present invention.

[0034] In the figure: 1, printing machine body; 2, ink supply cylinder; 3, ink distribution roller; 4, ink filling groove; 5, inclined guide plate; 6, scraper plate; 7, through groove; 8, impeller; 9, first slide bar; 10, side plate; 11, first slide groove; 12, first sliding protrusion; 13, track groove; 131, first horizontal part; 132, first inclined part; 133, second horizontal part; 134, second inclined part; 135, first one-way plate; 136, second one-way plate; 14, guide rail; 15, slide seat; 16, electric push rod; 17, first baffle plate; 18, second baffle plate; 19, storage chamber; 20, first Second slide groove; 21, second slide rod; 22, convex plate; 23, horizontal plate; 24, straight groove; 25, second sliding protrusion; 26, rotating shaft; 27, limiting ring; 28, first guide plate; 29, second guide plate; 30, connecting plate; 31, first guide groove; 32, second guide groove; 33, inclined groove; 34, convex block; 35, transmission rod; 36, limiting seat; 37, limiting slide groove; 38, fixed plate; 39, slide rail; 41, moving seat; 42, fixed sleeve; 43, ink outlet head; 44, rotating groove; 45, rotating rod; 46, torsion spring; 47, limiting block; 48, limiting rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] For example, see Figure 1-Figure 15 , an ink supply device for packaging bag printing, comprising an ink supply cylinder 2 arranged on a printer body 1, an ink filling groove 4 is arranged on the printer body 1, an inclined guide plate 5 is arranged at the bottom of the ink filling groove 4, a scraper plate 6 is arranged in the ink filling groove 4, a plurality of groups of through grooves 7 are opened at the bottom of the scraper plate 6, and impellers 8 are rotatably arranged inside the plurality of through grooves 7, a first slide bar 9 is fixed to one side of the scraper plate 6, a side plate 10 is arranged on the top of the printer body 1, and a reciprocating moving component for driving the scraper plate 6 to move left and right along the inclined guide plate 5 is arranged on the side plate 10;

[0037] The reciprocating moving assembly includes a first slide groove 11 provided on the side plate 10, the end of the first slide rod 9 is slidably arranged in the first slide groove 11, the end of the first slide rod 9 is fixed with a first sliding protrusion 12, and the inner wall of the first slide groove 11 is provided with a track groove 13 for the first sliding protrusion 12 to slide;

[0038] The track groove 13 includes a first horizontal portion 131, a first inclined portion 132, a second horizontal portion 133 and a second inclined portion 134 which are connected in sequence. A first one-way plate 135 is elastically connected at the connection between the first inclined portion 132 and the second horizontal portion 133. A second one-way plate 136 is elastically provided at the connection between the second inclined portion 134 and the first horizontal portion 131.

[0039] A protrusion 34 is fixed on the surface of the fixed sleeve 42, a transmission rod 35 is fixed on the lower surface of the protrusion 34, a limit seat 36 is fixed on the upper surface of the scraper plate 6, a limit slot 37 is provided on the limit seat 36, and the bottom end of the transmission rod 35 is slidably arranged in the limit slot 37;

[0040] An ink distribution roller 3 is rotatably arranged on the printing machine body 1, a fixed plate 38 is fixed on the top of the printing machine body 1, a slide rail 39 is fixed on the fixed plate 38, a movable seat 41 is slidably arranged on the slide rail 39, a fixed sleeve 42 is fixed on the movable seat 41, the ink supply cylinder 2 is fixed on the fixed sleeve 42, and an ink outlet head 43 is arranged at the bottom of the ink supply cylinder 2.

[0041] In the present technical solution, the movable seat 41 can slide back and forth on the slide rail 39. A servo motor and a pulley can be arranged inside the movable seat 41, so that the servo motor drives the pulley to move on the slide rail 39, so that the movable seat 41 moves. The slide rail 39 and the movable seat 41 are both prior arts, not the innovation of the present application, and are not described in detail. When the movable seat 41 moves along the slide rail 39, the movable seat 41 drives the fixed sleeve 42 to move, the fixed sleeve 42 drives the ink supply cylinder 2 to move, and the ink supply cylinder 2 drives the ink outlet head 43 to move, so that the ink outlet head 43 discharges the ink into the ink filling groove 4, and then the ink distribution roller 3 rotates to transport the ink inside the ink filling groove 4, thereby completing the ink supply process for the printing machine body 1.

[0042] When the fixed sleeve 42 moves, the transmission rod 35 is driven to move, and the transmission rod 35 drives the scraper plate 6 to move, so that the bottom of the scraper plate 6 can move along the surface of the inclined guide plate 5, so that the scraper plate 6 scrapes the ink on the surface of the inclined guide plate 5. When the scraper plate 6 is scraping, part of the ink can flow to the other side of the scraper plate 6 through the through groove 7, so as to avoid all the ink flowing to the other side of the scraper plate 6 through the top of the scraper plate 6, thereby preventing the ink liquid level from being too high.

[0043] The movement of the scraper plate 6 drives the first slide bar 9 to slide along the first slide groove 11 on the side plate 10, and the first slide bar 9 drives the first sliding protrusion 12 to slide along the track groove 13. When the scraper plate 6 moves from the a side to the b side of the printing machine body 1, the first sliding protrusion 12 first slides along the first horizontal portion 131, and then the first sliding protrusion 12 slides along the first inclined portion 132, so that the first sliding protrusion 12 drives the first slide bar 9 to move rightward, and the first slide bar 9 drives the scraper plate 6 to move rightward, so that the scraper plate 6 moves one end distance to the right on the inclined guide plate 5, and the distance is the through groove. 7, and then when the scraper plate 6 moves from the side b to the side a of the printing machine body 1, the first sliding protrusion 12 slides along the second horizontal portion 133 through the first one-way plate 135, so that the scraper plate 6 can scrape the part that is not scraped at the corresponding position of the through groove 7, thereby increasing the sufficiency of scraping. Finally, the first sliding protrusion 12 slides along the second inclined portion 134, so that the scraper plate 6 moves a distance to the left on the inclined guide plate 5, so that the scraper plate 6 is reset, and the above actions are repeated to realize the reciprocating scraping of the bottom surface of the inclined guide plate 5 by the scraper plate 6.

[0044] In the present technical solution, by rotating the impeller 8 inside the through groove 7, when the scraper plate 6 moves, the ink passing through the through groove 7 can drive the impeller 8 to rotate, so that the ink is stirred by the rotating impeller 8, which is beneficial to increase the uniformity of the ink; in addition, the bottom end of the transmission rod 35 can only slide left and right along the limiting groove 37 on the limiting seat 36, and the transmission rod 35 will not move out of the limiting seat 36, so that the transmission rod 35 can drive the scraper plate 6 to move, and when the scraper plate 6 moves left and right, the transmission rod 35 will not get stuck;

[0045] The structures of the first one-way plate 135 and the second one-way plate 136 are described in detail. The operation principles of the first one-way plate 135 and the second one-way plate 136 are the same. The first one-way plate 135 is used as an example for description below: Figure 7 Schematic diagram of the internal connection structure between the first one-way plate 135 and the side plate 10, a rotation groove 44 is opened inside the side plate 10, a rotating rod 45 is fixed at the end of the first one-way plate 135, the rotating rod 45 is rotatably arranged in the rotation groove 44, a torsion spring 46 is sleeved on the circumference of the rotating rod 45, the d end of the torsion spring 46 is fixed to the surface of the first one-way plate 135, the c end of the torsion spring 46 is fixedly connected to the inner wall of the rotation groove 44, and a limiting block 47 is fixed inside the rotation groove 44, and a limiting rod 48 that conflicts with the limiting block 47 is fixed on the rotating rod 45; Figure 7 As shown, by setting the limiting block 47, the first one-way plate 135 can only be pressed Figure 7When the first one-way plate 135 rotates to the right, when it rotates to the left, the limiting rod 48 conflicts with the limiting block 47, making it impossible to rotate to the left. When the first one-way plate 135 rotates to the right, the torsion spring 46 accumulates force. When the first one-way plate 135 loses the conflict, the torsion spring 46 releases force, so that the first one-way plate 135 is reset. Through the above principle, the first sliding protrusion 12 can only slide along the first inclined portion 132 to the second horizontal portion 133, and slide from the second inclined portion 134 to the first horizontal portion 131.

[0046] Embodiment 2: This embodiment is another technical solution of the reciprocating moving component. For details, please refer to Figure 1-Figure 15 The reciprocating moving assembly includes a guide rail 14 fixed on the side plate 10, a slide seat 15 is slidably arranged on the guide rail 14, an electric push rod 16 is fixed on the slide seat 15, and an output end of the electric push rod 16 is fixedly connected to the end of the first slide rod 9;

[0047] In the present technical solution, when the scraper plate 6 moves and drives the first slide bar 9 to move, the first slide bar 9 drives the electric push rod 16 to move, so that the electric push rod 16 drives the slide seat 15 to slide along the guide rail 14. When the scraper plate 6 moves from the a side to the b side of the printing machine body 1, the electric push rod 16 is first in an extended state. When the scraper plate 6 is about to slide to the b side, the electric push rod 16 contracts, so that the electric push rod 16 slides along the guide rail 14 while performing a contraction action until the scraper plate 6 slides to the b side. The electric push rod 16 stops contracting, and then when the scraper plate 6 moves from the b side to the a side of the printing machine body 1, when the scraper plate 6 is about to slide to the a side, the electric push rod 16 extends, so that the electric push rod 16 slides along the guide rail 14 while extending, until the scraper plate 6 slides to the a side, the electric push rod 16 stops extending, and the electric push rod 16 is reset to its original state. Through the above process, the process of the first sliding protrusion 12 sliding along the track groove 13 is completed, thereby realizing the left and right movement of the scraper plate 6.

[0048] In the third embodiment, when the ink passes through the groove 7, the ink will flow toward the impeller 8, causing the impeller 8 to rotate, but the rotation direction of the impeller 8 is random and cannot be determined, so the stirred ink cannot be discharged well. To solve this problem, this embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figure 1-Figure 15 The two ends of the through groove 7 are respectively provided with a first baffle 17 and a second baffle 18, the scraper plate 6 is provided with a storage cavity 19 for the first baffle 17 and the second baffle 18 to slide, the outer surface of the side plate 10 is provided with a second slide groove 20, a second slide rod 21 is slidably provided in the second slide groove 20, a convex plate 22 is fixed on the second slide rod 21, a transverse plate 23 is fixed on both the first baffle 17 and the second baffle 18, and the other end of the transverse plate 23 is fixedly connected to the convex plate 22;

[0049] A straight groove 24 is formed inside the second sliding groove 20 , and a second sliding protrusion 25 is fixed to the end of the second sliding rod 21 . The second sliding protrusion 25 is slidably disposed in the straight groove 24 .

[0050] In the technical solution, during the process of the scraper plate 6 moving from the side a to the side b of the printing machine body 1, the state of the first baffle plate 17 is as follows: Fig.12 As shown, the first baffle 17 extends into the through groove 7, and the outer surface of the first baffle 17 is set as an inclined structure, which can guide the ink, and facilitates the ink to be guided to the right side of the first baffle 17, so that the ink enters the through groove 7 from the right side, so that the ink impacts the right side of the impeller 8, and the impeller 8 rotates clockwise, which is not only convenient for stirring the ink, but also convenient for moving the ink toward the direction of the ink distribution roller 3 through clockwise rotation, which is beneficial to ink supply processing;

[0051] When the scraper plate 6 moves to the right, one end of the second slide bar 21 is slidably disposed inside the scraper plate 6 so that the scraper plate 6 can move to the right relative to the second slide bar 21. The scraper plate 6 moves to the right relative to the second slide bar 21, which is equivalent to the second slide bar 21 moving to the left relative to the scraper plate 6. Figure 9-10 As shown, the second slide bar 21 drives the convex plate 22 to move leftward inside the scraper plate 6, and the convex plate 22 drives the first baffle plate 17 and the second baffle plate 18 to move leftward through the transverse plate 23, so that the first baffle plate 17 is stored in the storage cavity 19, and the second baffle plate 18 is moved out of the storage cavity 19, so that the state of the second baffle plate 18 is as shown in FIG. Fig.13 As shown, the scraper plate 6 then moves from the b side to the a side of the printer body 1, and the outer surface of the second baffle 18 is also set to an inclined structure, which can guide the ink, and facilitates the ink to be guided to the left side of the second baffle 18, so that the ink enters the through groove 7 from the left side, so that the ink impacts the left side of the impeller 8, causing the impeller 8 to rotate counterclockwise. Through the counterclockwise rotation, the scraper plate 6 moves from the b side to the a side of the printer body 1, and it is also convenient to move the ink toward the ink distribution roller 3, which is beneficial to the ink supply process. Finally, the scraper plate 6 moves to the left and resets to Fig.12 state, and continue to repeat the above process.

[0052] In the fourth embodiment, when the impeller 8 rotates clockwise and counterclockwise, although the ink can be stirred to a certain extent, so that the ink has a tendency to move toward the ink distribution roller 3, since the impeller 8 is arranged in the through groove 7, when the impeller 8 rotates, the blades on the impeller 8 can only act on the ink inside the through groove 7, resulting in a smaller effect on the ink outside the through groove 7, so that the ink has a smaller tendency to move toward the ink distribution roller 3. In view of this problem, this embodiment is an improvement made on the basis of the third embodiment. For details, please refer to Figure 1-Figure 15A rotating shaft 26 is fixed on the top of the impeller 8, a limiting ring 27 is sleeved on the rotating shaft 26, a first guide plate 28 is fixed inside the scraper plate 6, the limiting ring 27 is slidably arranged in the first guide plate 28, a second guide plate 29 is slidably arranged inside the scraper plate 6, and a connecting plate 30 is fixed between the surface of the second guide plate 29 and the surface of the convex plate 22;

[0053] The first guide plate 28 is provided with a first guide groove 31 for the rotation shaft 26 to slide, the first guide plate 28 is provided with a second guide groove 32 for the limit ring 27 to slide, and the second guide plate 29 is provided with an inclined groove 33 for the rotation shaft 26 to slide.

[0054] In the technical solution, during the process of the scraper plate 6 moving from the side a to the side b of the printing machine body 1, the state of the first baffle plate 17 is as follows: Fig.14 As shown, the position of the impeller 8 is also as shown Fig.14 As shown, the blades of the impeller 8 leak out to the outside of the through groove 7. At this time, when the impeller 8 rotates, the blades of the impeller 8 can stir the ink outside the through groove 7;

[0055] When the scraper plate 6 moves to the right, the scraper plate 6 moves to the right relative to the second slide bar 21, which is equivalent to the second slide bar 21 moving to the left relative to the scraper plate 6. Fig.10 and Fig.11 As shown, the second slide bar 21 moves to the left, driving the convex plate 22 to move to the left, and the convex plate 22 drives the first baffle 17 and the second baffle 18 to move to the left through the cross plate 23, so that the first baffle 17 is stored in the storage chamber 19, and the second baffle 18 is moved out of the storage chamber 19. At the same time, the convex plate 22 drives the connecting plate 30 to move to the left, and the connecting plate 30 drives the second guide plate 29 to move to the left, so that the rotating shaft 26 contacts the inclined groove 33, and the rotating shaft 26 slides along the first guide groove 31 on the first guide plate 28 until the second baffle 18 and the impeller 8 move to the position as shown in FIG. Fig.15 As shown;

[0056] Then the scraper plate 6 moves from the b side to the a side of the printer body 1, so that the impeller 8 moves in accordance with Fig.15 The blades of the impeller 8 still leak out to the outside of the through groove 7. At this time, when the impeller 8 rotates, the blades of the impeller 8 can still stir the ink outside the through groove 7, thereby making it easier for the ink to move toward the ink distribution roller 3, further improving the ink supply effect. When the scraper plate 6 moves to the left, the impeller 8 moves from Fig.15 Status reset to Fig.14 state;

[0057] In the present technical solution, by setting a limit ring 27, the limit ring 27 is rotatably set in the second guide groove 32, and the limit ring 27 can slide horizontally in the second guide groove 32, so that the impeller 8 and the rotating shaft 26 will not fall from the inside of the through groove 7, and will not affect the rotation of the impeller 8, and at the same time, the impeller 8 can also slide in the through groove 7.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ink supply device for packaging bag printing, comprising an ink supply cylinder (2) arranged on a printer body (1), an ink filling groove (4) being arranged on the printer body (1), an inclined guide plate (5) being arranged at the bottom of the ink filling groove (4), characterized in that: A scraper plate (6) is arranged in the ink filling groove (4), a plurality of groups of through grooves (7) are provided at the bottom of the scraper plate (6), impellers (8) are rotatably arranged inside the plurality of groups of through grooves (7), a first slide bar (9) is fixed to one side of the scraper plate (6), a side plate (10) is arranged on the top of the printing machine body (1), and a reciprocating moving component for driving the scraper plate (6) to move left and right along the inclined guide plate (5) is arranged on the side plate (10).

2. The ink supply device for packaging bag printing according to claim 1, characterized in that: The reciprocating moving component includes a first slide groove (11) opened on the side plate (10), the end of the first slide rod (9) is slidably arranged in the first slide groove (11), the end of the first slide rod (9) is fixed with a first sliding protrusion (12), and the inner wall of the first slide groove (11) is provided with a track groove (13) for the first sliding protrusion (12) to slide.

3. The ink supply device for packaging bag printing according to claim 2, characterized in that: The track groove (13) comprises a first horizontal portion (131), a first inclined portion (132), a second horizontal portion (133) and a second inclined portion (134) which are connected in sequence, a first one-way plate (135) being elastically connected at the connection between the first inclined portion (132) and the second horizontal portion (133), and a second one-way plate (136) being elastically provided at the connection between the second inclined portion (134) and the first horizontal portion (131).

4. The ink supply device for packaging bag printing according to claim 1, characterized in that: The reciprocating moving assembly comprises a guide rail (14) fixed on the side plate (10), a slide seat (15) is slidably arranged on the guide rail (14), an electric push rod (16) is fixed on the slide seat (15), and an output end of the electric push rod (16) is fixedly connected to the end of the first slide rod (9).

5. The ink supply device for packaging bag printing according to claim 1, characterized in that: A first baffle (17) and a second baffle (18) are respectively provided at both ends of the through groove (7); a storage cavity (19) for the first baffle (17) and the second baffle (18) to slide is provided inside the scraper plate (6); a second slide groove (20) is provided on the outer surface of the side plate (10); a second slide rod (21) is slidably provided in the second slide groove (20); a convex plate (22) is fixed on the second slide rod (21); a transverse plate (23) is fixed on both the first baffle (17) and the second baffle (18); the other end of the transverse plate (23) is fixedly connected to the convex plate (22).

6. The ink supply device for packaging bag printing according to claim 5, characterized in that: A straight groove (24) is provided inside the second sliding groove (20), a second sliding protrusion (25) is fixed to the end of the second sliding rod (21), and the second sliding protrusion (25) is slidably arranged in the straight groove (24).

7. The ink supply device for packaging bag printing according to claim 6, characterized in that: A rotating shaft (26) is fixed on the top of the impeller (8), a limiting ring (27) is sleeved on the rotating shaft (26), a first guide plate (28) is fixed inside the scraper plate (6), the limiting ring (27) is slidably arranged in the first guide plate (28), a second guide plate (29) is slidably arranged inside the scraper plate (6), and a connecting plate (30) is fixed between the surface of the second guide plate (29) and the surface of the convex plate (22).

8. The ink supply device for packaging bag printing according to claim 7, characterized in that: The first guide plate (28) is provided with a first guide groove (31) for the rotating shaft (26) to slide, the first guide plate (28) is provided with a second guide groove (32) for the limiting ring (27) to slide, and the second guide plate (29) is provided with an inclined groove (33) for the rotating shaft (26) to slide.

9. The ink supply device for packaging bag printing according to claim 1, characterized in that: A protrusion (34) is fixed on the surface of the fixed sleeve (42), a transmission rod (35) is fixed on the lower surface of the protrusion (34), a limiting seat (36) is fixed on the upper surface of the scraper plate (6), a limiting slide groove (37) is provided on the limiting seat (36), and the bottom end of the transmission rod (35) is slidably arranged in the limiting slide groove (37).

10. The ink supply device for packaging bag printing according to claim 1, characterized in that: An ink distribution roller (3) is rotatably arranged on the printing machine body (1), a fixed plate (38) is fixed on the top of the printing machine body (1), a slide rail (39) is fixed on the fixed plate (38), a movable seat (41) is slidably arranged on the slide rail (39), a fixed sleeve (42) is fixed on the movable seat (41), the ink supply cylinder (2) is fixed on the fixed sleeve (42), and an ink outlet head (43) is arranged at the bottom of the ink supply cylinder (2).

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